EP 1079620 A3 20040303 - Programmable digital signal processor for demodulating digital television signals
Title (en)
Programmable digital signal processor for demodulating digital television signals
Title (de)
Programmierbarer digitaler Signalprozessor zur Demodulation von digitalen Fernsehsignalen
Title (fr)
Processeur de signaux numériques programmable pour la démodulation de signaux de télévision numériques
Publication
Application
Priority
US 36600599 A 19990802
Abstract (en)
[origin: EP1079620A2] A phase-lock loop circuit in a demodulator includes a timing recovery block and a carrier recovery block. The demodulator for demodulates a digital signal including symbols. The phase-lock loop includes an integrator processing a block of N samples to produce an average of the N symbols, and means for supplying the average of the N symbols to the timing recovery block and the carrier recovery block every NT period, where T is a sample time interval. <IMAGE>
IPC 1-7
IPC 8 full level
H03L 7/181 (2006.01); H04L 7/02 (2006.01); H04L 27/00 (2006.01); H04L 27/152 (2006.01); H04L 27/38 (2006.01); H04N 5/06 (2006.01); H04N 5/46 (2006.01); H04N 5/44 (2006.01); H04N 5/455 (2006.01)
CPC (source: EP US)
H04L 7/0029 (2013.01 - EP US); H04L 27/38 (2013.01 - EP US); H04N 21/42607 (2013.01 - EP US); H04N 21/4382 (2013.01 - EP US); H04L 2027/003 (2013.01 - EP US); H04L 2027/0042 (2013.01 - EP US); H04L 2027/0057 (2013.01 - EP US); H04N 5/455 (2013.01 - EP US); H04N 21/426 (2013.01 - EP US)
Citation (search report)
- [Y] US 5373255 A 19941213 - BRAY JEFFREY P [US], et al
- [Y] SHETH S ET AL: "Timing and carrier recovery techniques in DSP based digital receivers", MILITARY COMMUNICATIONS CONFERENCE, 1994. MILCOM '94. CONFERENCE RECORD, 1994 IEEE FORT MONMOUTH, NJ, USA 2-5 OCT. 1994, NEW YORK, NY, USA,IEEE, US, 2 October 1994 (1994-10-02), pages 639 - 643, XP010149740, ISBN: 0-7803-1828-5
- [DA] BAO J ET AL: "NEW TIMING RECOVERY METHOD FOR DTV RECEIVERS", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE INC. NEW YORK, US, vol. 44, no. 4, November 1998 (1998-11-01), pages 1243 - 1248, XP000871421, ISSN: 0098-3063
- [A] ERUP L ET AL: "INTERPOLATION IN DIGITAL MODEMS-PART II: IMPLEMENTATION AND PERFORMANCE", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 41, no. 6, 1 June 1993 (1993-06-01), pages 998 - 1008, XP002059992, ISSN: 0090-6778
- [A] KARAM G ET AL: "Design and performance of a variable-rate QAM modem for digital cable television", INTERNATIONAL BROADCASTING CONVENTION, LONDON, GB, 14 September 1995 (1995-09-14), pages 178 - 183, XP002229713
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1079620 A2 20010228; EP 1079620 A3 20040303; JP 2001077871 A 20010323; US 6577685 B1 20030610
DOCDB simple family (application)
EP 00114882 A 20000712; JP 2000205022 A 20000706; US 36600599 A 19990802